Prince George's County Police say they conducted a sting on Tuesday targeting men who solicit prostitutes and made no arrests over a period of several hours.
Sgt. Dave Coleman is in charge of the county's vice unit. He says in a statement that he's participated in hundreds of stings and he can't remember one in which no arrests were made.
Coleman says the announcement that the department would live-tweet the sting "put johns on notice to not come to Prince George's County."
Police say they decided against live-tweeting over concerns that the identities of undercover officers would be revealed.